Home / 209,278.06-311,945.63-192,481.90

Finding the Fourth Proportional to 209,278.06, 311,945.63 and 192,481.90

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Solution

The fourth proportional to 209,278.06, 311,945.63 and 192,481.90 is: 286,909.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,278.06 : 311,945.63 = 192,481.90 : x
  2. Step 2: Convert to fraction form
    209,278.06/311,945.63 = 192,481.90/x
  3. Step 3: Cross multiply
    209,278.06x = 311,945.63 × 192,481.90
  4. Step 4: Simplify right side
    209,278.06x = 60,043,886,596.69
  5. Step 5: Solve for x
    x = 60,043,886,596.69/209,278.06
  6. Step 6: Final answer
    x = 286,909.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.